package com.lijy.awt.text;

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;

public class TextComponentFrame extends JFrame
{
    public static final int TEXTAREA_ROWS = 8;
    public static final int TEXTAREA_COLUMNS = 20;

    public TextComponentFrame()
    {
        final JTextField textField = new JTextField();
        final JPasswordField passwordField = new JPasswordField();

        JPanel northPanel = new JPanel();
        northPanel.setLayout(new GridLayout(2, 2));
        northPanel.add(new JLabel("User name:", SwingConstants.RIGHT));
        northPanel.add(textField);
        northPanel.add(new JLabel("Password:", SwingConstants.RIGHT));
        northPanel.add(passwordField);

        add(northPanel, BorderLayout.NORTH);

        final JTextArea textArea = new JTextArea(TEXTAREA_ROWS, TEXTAREA_COLUMNS);
        JScrollPane scrollPane = new JScrollPane(textArea);

        add(scrollPane, BorderLayout.CENTER);

        JPanel southPanel = new JPanel();

        JButton insertButton = new JButton("Insert");
        southPanel.add(insertButton);
        insertButton.addActionListener(
                new ActionListener()
                {
                    public void actionPerformed(ActionEvent e)
                    {
                        textArea.append("User name:" + textField.getText() + " Password:"
                                + new String(passwordField.getPassword()) + "\n");
                    }
                });

        add(southPanel, BorderLayout.SOUTH);
        pack();
    }

    public static void main(String[] args)
    {
        EventQueue.invokeLater(
                new Runnable()
                {
                    public void run()
                    {
                        JFrame frame = new TextComponentFrame();
                        frame.setTitle("TextTest");
                        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                        frame.setVisible(true);
                    }
                }
        );
    }

}
